User`s guide

SET mirrorset-container-name
SET mirrorset-container-name
Changes the characteristics of a mirrorset.
Format
SET mirrorset-container-name
Parameters
mirrorset-container-name
The name of the mirrorset that will have its characteristics modified. The name
must start with a letter (A–Z) and can then consist of up to eight more characters
made up of letters A–Z, numbers 0–9, periods (.), dashes (-), or underscores (_),
for a total of nine characters.
Description
Changes the characteristics of a mirrorset.
Qualifiers
MEMBERSHIP= number-of-members
Allows you to increase or decrease the nominal membership of a mirrorset to the
number specified by number-of-members.
If the mirrorset membership is increased, and autosparing is turned on (by
specifying POLICY=BEST_FIT or POLICY=BEST_PERFORMANCE), the
mirrorset automatically brings in spares until either the new number of members
is reached, or there are no more suitable spares.
If autosparing is turned off (by specifying NOPOLICY), then you must use the
SET mirrorset-container-name REPLACE=disk-device-name command to bring
the mirrorset up to the new nominal number of members.
You may not set the nominal number of members to be lower than the number of
members physically present. Use the REMOVE=disk-container-name qualifier to
reduce the number of devices that are part of the mirrorset.
REPLACE= disk-device-name
Specifies the replacement of a disk member into an existing mirrorset provided
the following two conditions are met:
• The replacement policy must be set to NOPOLICY.
• The mirrorset must be missing at least one member.
If these two conditions are met, the device specified by disk-device-name is added
to the mirrorset specified by mirrorset-container-name. The nominal number of
members does not change.
Note
No other qualifiers to the SET mirrorset-device-name command may be
specified if the REPLACE qualifier is specified.
B–62 Command Line Interpreter